US PATENT SUBCLASS 348 / 696
.~.~ Insertion level derived by key signals

Current as of: June, 1999
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348 /   HD   TELEVISION

571  DF  IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION {34}
691  DF  .~ DC insertion {6}
696.~.~ Insertion level derived by key signals {1}
697  DF  .~.~.~> Level derived within feedback path

DEFINITION

Classification: 348/696

Insertion level derived by key signals:

(under subclass 691) Subject matter including circuitry in which the bias to be added is derived at selected times using a control signal.